Written Homework 6 Solutions

Written Homework 6 Solutions - 22lFa1l20o7 Physics...

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Physics 22lFa1l20o7 Written Homework due Tuesday October 02 l-- In the sketch below, a mass slides along a track from an initial lwel to a higher level by moving through an intermediate minimum. The track is frictionless until the tnass reaches the higher level. On the upper level a frictiond force stops the mass in a distance d. The mass's initial speed is vo:6.0 nrls; the depth of the local minima is2.5 m; the height difference betwe€n the two levels is 1.1 m; and the coefficient ofkinetic friction on the upper level is p : 0.60. (a) tWhat is the value of d? (b) What is the value of the mass's maximum speed as it progresses from the initial level to the higher one? (c) If the depth of the local minima is increased to 5.0 m, how does this afFect the value for d calculated for part (a)? r<J >l No.6o ^\ Tl\S (S NNJ Er<€Lc\S€ l\r TgAgtsrilc- ' E$rg0-GY 11KE + \P€ -W,o,._r, =c) dA .-y - \J- S-(5'r5rt KE^ r pEi +\o = KEFPnt i \l= -)"NI t'*i= =tr-'A {r,tvf* N?\i 7 *?A =O t nThg A= hl+vf -1([rkr[= fuL{G\'-tr'z)(t'\]= La3 ilfo= rnAss wdrut Nsvq V*o* "J \T Tx€ t;lcq; N\rvrrn\Jr\
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Written Homework 6 Solutions - 22lFa1l20o7 Physics...

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